Point72-affiliated entities filed an amended Schedule 13G reporting a 2.9% passive stake in Korro Bio, Inc. common stock. As of the close of business on December 31, 2025, Point72 Biotech Private Investments, LLC, Differentiated Ventures Investments, LLC, 72 Investment Holdings, LLC and Steven A. Cohen are each reported as beneficial owners of 276,831 shares of Korro Bio common stock, representing 2.9% of the outstanding class. Point72 Asset Management, L.P. and Point72 Capital Advisors, Inc. report no direct holdings, though the filing describes their roles in managing and controlling affiliated entities. The signatories certify that the securities were not acquired and are not held for the purpose of changing or influencing control of Korro Bio.
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SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
SCHEDULE 13G
UNDER THE SECURITIES EXCHANGE ACT OF 1934
(Amendment No. 3)
Korro Bio, Inc.
(Name of Issuer)
Common Stock, par value $0.001 per share
(Title of Class of Securities)
500946108
(CUSIP Number)
12/31/2025
(Date of Event Which Requires Filing of this Statement)
Check the appropriate box to designate the rule pursuant to which this Schedule is filed:
Rule 13d-1(b)
Rule 13d-1(c)
Rule 13d-1(d)
SCHEDULE 13G
CUSIP No.
500946108
1
Names of Reporting Persons
Point72 Asset Management, L.P.
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
0.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
0.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
0.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
0 %
12
Type of Reporting Person (See Instructions)
PN
SCHEDULE 13G
CUSIP No.
500946108
1
Names of Reporting Persons
Point72 Capital Advisors, Inc.
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
0.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
0.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
0.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
0 %
12
Type of Reporting Person (See Instructions)
CO
SCHEDULE 13G
CUSIP No.
500946108
1
Names of Reporting Persons
Point72 Biotech Private Investments, LLC
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
276,831.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
276,831.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
276,831.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
2.9 %
12
Type of Reporting Person (See Instructions)
OO
SCHEDULE 13G
CUSIP No.
500946108
1
Names of Reporting Persons
Differentiated Ventures Investments, LLC
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
276,831.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
276,831.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
276,831.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
2.9 %
12
Type of Reporting Person (See Instructions)
OO
SCHEDULE 13G
CUSIP No.
500946108
1
Names of Reporting Persons
72 Investment Holdings, LLC
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
DELAWARE
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
276,831.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
276,831.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
276,831.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
2.9 %
12
Type of Reporting Person (See Instructions)
OO
SCHEDULE 13G
CUSIP No.
500946108
1
Names of Reporting Persons
Steven A. Cohen
2
Check the appropriate box if a member of a Group (see instructions)
(a)
(b)
3
Sec Use Only
4
Citizenship or Place of Organization
UNITED STATES
Number of Shares Beneficially Owned by Each Reporting Person With:
5
Sole Voting Power
0.00
6
Shared Voting Power
276,831.00
7
Sole Dispositive Power
0.00
8
Shared Dispositive Power
276,831.00
9
Aggregate Amount Beneficially Owned by Each Reporting Person
276,831.00
10
Check box if the aggregate amount in row (9) excludes certain shares (See Instructions)
11
Percent of class represented by amount in row (9)
2.9 %
12
Type of Reporting Person (See Instructions)
IN
SCHEDULE 13G
Item 1.
(a)
Name of issuer:
Korro Bio, Inc.
(b)
Address of issuer's principal executive offices:
60 First Street, 2nd Floor, Suite 250, Cambridge, MA 02141.
Item 2.
(a)
Name of person filing:
This statement is filed by: (i) Point72 Asset Management, L.P. ("Point72 Asset Management") with respect to the shares of common stock, par value $0.001 per share ("Common Stock"), of Korro Bio, Inc. that were held by an investment fund it manages; (ii) Point72 Capital Advisors, Inc. ("Point72 Capital Advisors Inc."), the general partner of Point72 Asset Management, with respect to the shares of Common Stock that were held by an investment fund managed by Point72 Asset Management; (iii) Point72 Biotech Private Investments, LLC ("Point72 Biotech") with respect to the shares of Common Stock of which it is the holder; (iv) Differentiated Ventures Investments, LLC ("Differentiated Ventures"), the managing member of Point72 Biotech, with respect to the shares of Common Stock held by Point72 Biotech; (v) 72 Investment Holdings, LLC ("72 Investment Holdings"), the sole member of Differentiated Ventures, with respect to the shares of Common Stock held by Point72 Biotech, and (vi) Steven A. Cohen ("Mr. Cohen"), the sole member of 72 Investment Holdings and sole shareholder of Point72 Capital Advisors Inc., with respect to the shares of Common Stock that were beneficially owned by Point72 Asset Management and Point72 Capital Advisors Inc. and the shares of Common Stock beneficially owned by Point72 Biotech, Differentiated Ventures, and 72 Investment Holdings.
(b)
Address or principal business office or, if none, residence:
The address of the principal business office of Point72 Asset Management, Point72 Capital Advisors Inc., Point72 Biotech, Differentiated Ventures, 72 Investment Holdings, and Mr. Cohen is 72 Cummings Point Road, Stamford, CT 06902.
(c)
Citizenship:
Point72 Asset Management is a Delaware limited partnership. Point72 Capital Advisors Inc. is a Delaware corporation. Point72 Biotech, Differentiated Ventures, and 72 Investment Holdings are Delaware limited liability companies. Mr. Cohen is a United States citizen.
(d)
Title of class of securities:
Common Stock, par value $0.001 per share
(e)
CUSIP No.:
500946108
Item 3.
If this statement is filed pursuant to §§ 240.13d-1(b) or 240.13d-2(b) or (c), check whether the person filing is a:
(a)
Broker or dealer registered under section 15 of the Act (15 U.S.C. 78o);
(b)
Bank as defined in section 3(a)(6) of the Act (15 U.S.C. 78c);
(c)
Insurance company as defined in section 3(a)(19) of the Act (15 U.S.C. 78c);
(d)
Investment company registered under section 8 of the Investment Company Act of 1940 (15 U.S.C. 80a-8);
(e)
An investment adviser in accordance with § 240.13d-1(b)(1)(ii)(E);
(f)
An employee benefit plan or endowment fund in accordance with § 240.13d-1(b)(1)(ii)(F);
(g)
A parent holding company or control person in accordance with § 240.13d-1(b)(1)(ii)(G);
(h)
A savings associations as defined in Section 3(b) of the Federal Deposit Insurance Act (12 U.S.C. 1813);
(i)
A church plan that is excluded from the definition of an investment company under section 3(c)(14) of the Investment Company Act of 1940 (15 U.S.C. 80a-3);
(j)
A non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J). If filing as a non-U.S. institution in accordance with § 240.13d-1(b)(1)(ii)(J),
please specify the type of institution:
(k)
Group, in accordance with Rule 240.13d-1(b)(1)(ii)(K).
Item 4.
Ownership
(a)
Amount beneficially owned:
The information required by Item 4(a) is set forth in Row 9 of the cover page for each of the Reporting Persons and is incorporated herein by reference. Such information is as of the close of business on December 31, 2025.
Point72 Asset Management, Point72 Capital Advisors Inc., and Mr. Cohen own directly no shares of Common Stock. Pursuant to an investment management agreement, Point72 Asset Management maintains investment and voting power with respect to the securities held by an investment fund it manages. Point72 Capital Advisors Inc. is the general partner of Point72 Asset Management. Pursuant to an investment management agreement, Mr. Cohen controls each of Point72 Asset Management and Point72 Capital Advisors Inc.
Differentiated Ventures is the managing member of Point72 Biotech and may be deemed to share beneficial ownership over the shares of Common Stock held by Point72 Biotech. 72 Investment Holdings is the sole member of Differentiated Ventures and may be deemed to share beneficial ownership of the shares of Common Stock of which Differentiated Ventures may be deemed the beneficial owner.
The filing of this statement should not be construed as an admission that any of the foregoing persons or any Reporting Person is, for the purposes of Section 13 of the Securities and Exchange Act of 1934, the beneficial owner of the Common Stock reported herein.
(b)
Percent of class:
2.9%
(c)
Number of shares as to which the person has:
(i) Sole power to vote or to direct the vote:
The information required by Item 4(c)(i) is set forth in Row 5 of the cover page for each of the Reporting Persons and is incorporated herein by reference. Such information is as of the close of business on December 31, 2025.
(ii) Shared power to vote or to direct the vote:
The information required by Item 4(c)(ii) is set forth in Row 6 of the cover page for each of the Reporting Persons and is incorporated herein by reference. Such information is as of the close of business on December 31, 2025.
(iii) Sole power to dispose or to direct the disposition of:
The information required by Item 4(c)(iii) is set forth in Row 7 of the cover page for each of the Reporting Persons and is incorporated herein by reference. Such information is as of the close of business on December 31, 2025.
(iv) Shared power to dispose or to direct the disposition of:
The information required by Item 4(c)(iv) is set forth in Row 8 of the cover page for each of the Reporting Persons and is incorporated herein by reference. Such information is as of the close of business on December 31, 2025.
Item 5.
Ownership of 5 Percent or Less of a Class.
Ownership of 5 percent or less of a class
Item 6.
Ownership of more than 5 Percent on Behalf of Another Person.
If any other person is known to have the right to receive or the power to direct the receipt of dividends from, or the proceeds from the sale of, such securities, a statement to that effect should be included in response to this item and, if such interest relates to more than 5 percent of the class, such person should be identified. A listing of the shareholders of an investment company registered under the Investment Company Act of 1940 or the beneficiaries of employee benefit plan, pension fund or endowment fund is not required.
See Item 2(a).
Item 7.
Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on by the Parent Holding Company or Control Person.
Not Applicable
Item 8.
Identification and Classification of Members of the Group.
Not Applicable
Item 9.
Notice of Dissolution of Group.
Not Applicable
Item 10.
Certifications:
By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect, other than activities solely in connection with a nomination under ?? 240.14a-11.
SIGNATURE
After reasonable inquiry and to the best of my knowledge and belief, I certify that the information set forth in this statement is true, complete and correct.
What ownership stake in Korro Bio (KRRO) do Point72-related entities report?
The filing reports that Point72 Biotech Private Investments, Differentiated Ventures, 72 Investment Holdings, and Steven A. Cohen each beneficially own 276,831 Korro Bio common shares, representing 2.9% of the outstanding class as of December 31, 2025, according to the Schedule 13G/A amendment.
Which Point72 entities are listed as reporting persons in this Korro Bio Schedule 13G/A?
The filing lists Point72 Asset Management, Point72 Capital Advisors, Point72 Biotech Private Investments, Differentiated Ventures Investments, 72 Investment Holdings, and Steven A. Cohen as reporting persons, reflecting the ownership and control structure around the 276,831 Korro Bio common shares.
Do Point72 Asset Management and Point72 Capital Advisors directly own Korro Bio (KRRO) shares?
The Schedule 13G/A states that Point72 Asset Management and Point72 Capital Advisors own directly no Korro Bio common shares. Their roles are described through investment management and general partner relationships with funds and entities that hold the reported 276,831-share position.
How much voting and dispositive power do the Point72 entities report over Korro Bio shares?
For Point72 Biotech, Differentiated Ventures, 72 Investment Holdings, and Steven A. Cohen, the filing shows 276,831 shares with shared voting and shared dispositive power, and zero sole power. Point72 Asset Management and Point72 Capital Advisors report zero voting and dispositive power directly.
Is the Point72 stake in Korro Bio (KRRO) intended to influence control of the company?
The certification specifies the securities were not acquired and are not held to change or influence control of Korro Bio. They are reported under Schedule 13G, which is typically used for passive holdings rather than activist or control-seeking positions.
What is the key date referenced in this Korro Bio Schedule 13G/A filing?
The filing identifies December 31, 2025 as the date of the event requiring the statement. Ownership information, including the 276,831 shares and 2.9% of the class, is explicitly stated as being as of the close of business on that date.
